Build Your Own 12-Volt LiFePO4 Battery For Cheaper Than AGM

#lifepo4 #vanbuild #vanlife
The time has finally come. This DIY lithium iron phosphate battery is cheaper per usable amp hour than AGM. That is not considering their 5-10 times more cycle life. Is the price finally right for those of us waiting to make the switch? Well, watch this video and decide for yourself.
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Build Your Own LiFePO4 Battery Pack for Cheap!
280Ah LiFePO4 Battery Cells - freelyroaming.com/lifepo4-cells/
Daly LiFePO4 4S 12V 120A BMS - freelyroaming.com/daly-bms/
5A-8A Active Cell Balancer - freelyroaming.com/active-cell...
Order link for US, UK and Most EU Buyers:
Here is the battery deal on AliExpress mentioned in this video.
freelyroaming.com/lifepo4-cells/
Watch the LiFePO4 build series:
Part 1 - All The Parts - • DIY 12-Volt 280Ah LiFe...
Part 2 - Assembly - • DIY 12-Volt 280Ah LiFe...
Part 3 - Capacity Test - • DIY 12-Volt 280Ah LiFe...
Part 4 - Installation and Programming - • DIY 12-Volt 280Ah LiFe...
Part 5 - Exact Costs and How It's Working - • DIY 12-Volt 280Ah LiFe...
Timestamps
00:00 Introduction
01:29 Price comparisons
02:50 Why Now Is The Right Time
04:12 280Ah LifePO4 Cells from Aliexpress
08:31 Shipping and packaging of cells
11:53 Daly 4S Battery Management System
14:11 Active Cell Balancer
16:04 Conclusion
Products shown in this video:
280Ah LiFePO4 Battery Cells - s.click.aliexpress.com/e/_AYk0Bh
Daly LiFePO4 4S 12V 120A BMS - s.click.aliexpress.com/e/_AKLJwW
5A-8A Active Cell Balancer - s.click.aliexpress.com/e/_AAlZrA
VMax 225 Ah 6-Volt AGM Batteries - amzn.to/35dYLWN
Battleborn 100 Ah LiFePO4 Battery - amzn.to/38xFUIi
ExpertPower 100 Ah LiFePO4 Battery - amzn.to/35dYLWN
SOK 100 Ah LiFePO4 Battery - amzn.to/3msXLEn
Because I needed mine to be shipped to Europe I couldn't buy from some of the cheaper listings for tax and customs reasons. It's more expensive than many other listings but I am happy with the quality and shipping experience.
Some of you have asked and the exact listing to the cells I bought is here:
www.aliexpress.com/item/40009...
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[@WillProwse]

Really awesome! Bummer the shipping to europe was so expensive. And yes, MUCH cheaper than lead acid. I don't understand why anyone buys lead acid anymore 😂 You don't need a balancer for these cells. If they are matched correctly, the active balancer is a waste of money. If they pull full capacity, you are good to go.

[@freelyroaming]

Thanks! Yes I am comfortable with how well balanced the cells came but for 40 bucks I am ok with using the active balancer. After 3 months of using the pack, it's keeping the max-min delta at 6mV. I don't have any conclusive tests to prove it but it will get as much as 30mV apart while under charge or load and recovers really quickly. No complaints! At a low c rate discharge test, it pulled 284Ah!

[@SamsAdventures247]

I want to know how I can set it up in the milk crate and run my 1000 watt air conditioner

[@VEChaplin]

In Canada, shipping is also totally prohibitive ... $ 350 Canadian for shipping 4 cell ... ouch !!! $ 700 for 4 cell + $ 359 shipping ... $ 1050 ouch !!!

[@freelyroaming]

That's crazy. Try a few different sellers. I've found that many of them have significantly different shipping rates for whatever reason.

[@VEChaplin]

@@freelyroaming I noticed the same thing. Shipping costs for the same product which even greatly exceeds the total cost of the product in shipping ... therefore becomes more interesting for several regions of the world

[@bretburt7317]

Best explanation I've seen yet for a set up like this. Detailed enough, concise and articulate. Kudos.

[@HousesBuiltTiny]

I love the courtesy of your timestamps but I've never stopped short of watching a complete video yet :-) keep up the good sharing thank you

[@SupraKooper]

I personally like it because I will be returning to this video when I do have the money to build my own battery system. And I don't need to watch all the unnecessary parts. Since I've already seen the entire video right now.

[@freeman-1776]

Finally, someone who can explain these batteries in a clear and concise way. Thank you Sir. I'm going to double this with 8 batteries using at least a 5000 watt pure sign wave inverter. I have been using 5 full sized lead acid batteries with my vans two 160w solar panels and a 1000 watt inverter. Works perfectly but I worry about off gassing as I noticed that anything that is metal in close proximity of the batteries begins to develop a blue green film from the acid vapor of the batteries. This can't be good. So I will go all out for LiFePO4 batteries. I am an English teacher living in Vietnam. The power is always going out here and I want to build a backup system I can use in the house as well as a future van build. Cheers!

[@josephdaguio9732]

Thanks for the advancement of the technolgy and batteries are getting cheaper, lighter and manageable and thanks for the DIY tutorial videos contribution from the wonderful guys.

[@AzGoodAzEver]

I have seen so many diy battery builds but you are the first one that explained the parts in a way I understood. Thank you!

[@hugoponce69]

Great Job explaining, Thank you for the information.

[@aubreydebliquy8051]

Thank you. I subscribed because you are coherent and economical in expressing your ideas. That's an unusual gift.

[@freelyroaming]

Thank you sir. Appreciate your subscription.

[@MrMEmEmEmEMEMEeeeeee]

Wow, this is by far the most easily understandable presentation on LiPO4 batteries anywhere on KZbin. Your explanation of balancing is perfect for a noob like me. I dearly love Will Prowse/David Poz/jehugarcia and others, but YOU have a gift for teaching. No BS, no hype, no fancy electronics, no triple integrals to make my eyes glaze over, just information presented clearly. No music, good camera work, sound level good. A Top 5 all time best YT vid! Liked/subbed/forwarded.

[@freelyroaming]

That is quite a compliment and I appreciate it very much! Thank you!

[@storminite2041]

I loved the fact you showed how you started off with the lower version but hoped a new one was being worked on. I thank you for showing that if you dont have all the parts, it just wont work and spares die eventually. Thanks for your time.

[@13monkz]

So grateful for you in many ways. And we'll leave it at that..except to say Thank you so much! You truly are a great person to share you knowledge at a level that all can understand.

[@freelyroaming]

Thank you for such kind words!

[@frankj5947]

You are a great presenter! To the point and explain where needed. Thanks.

[@freelyroaming]

Thank you Frank!

[@moriver3857]

This is probably the most comprehensive and least hyped video about Lithium batteries. And timing is good because in a year's time, I'll be replacing my 3 battery deep-cycle battery bank on my boat and have been looking at AGM, Lithium, etc since in a span of 7 years, it will be the second time I replace the battery bank. Definitely will look further at this. Thanks for the awesome presentation.

[@jamesrougeau]

Excellent! Very detailed, well thought out and excellent delivery. Just subscribed. Thanks amen!

[@robertwhite4307]

I just came across this video, it was great, I don't know what you did for a living, but I wish you were my permanent school teacher when I was younger. That was definitely right up there with the best tutorial videos I have ever viewed on youtube, 99 thumbs up. Thank you for taking the time to produce and post it. I will be checking out your other content for sure. Cheers from Nova Scotia Canada minus 6 celsius and one small snow so far.

[@deanwells2859]

Very informative. Thank you for taking the time to properly put your presentation together.

[@gtdude2883]

One of the best presentations on LifePo4 batteries I have come across on the internet, clear, concise and accurate information. Subscribed and will follow your channel as I learn and eventually will build my own battery bank. Thanks

[@freelyroaming]

Thank you

[@aurthurdent99]

Well done sir. Lots of good information. Thank you for sharing!

[@Humppakarajat]

Thanks Dan, appreciate your efforts!

[@ozgemmo3445]

Excellent presentation in all respects! Yes I totally agree that 12V (or 6V) Li-batteries do have a number of significant advantages over AGM's with the best by far being energy density, usable Amps, battery orientation and weight differences (I presently run two 110Ah AGMs in parallel in my off-road caravan and the combined weight is 60kgs)! Battery management is through a high-end MPPT controller (which can also handle Li batteries) fed from 150W solar panel. The down sides for Li batteries here in Australia is firstly, cost with presently up to a 4X $ difference between equivalent AGM's and Li's (Li's being higher cost) and while the Li-battery sellers often "tout" "10+ life-times compared to an equivalent AGM", I'm yet to see any factual confirming data supporting such claims!! Li-batteries however, do definitely last longer than AGM's but just how much longer is pretty much still to be realistically demonstrated which, in my opinion, does not justify Li-batteries high cost. What really worries me (as a retired analytical chemist), is that in my experience Li-battery sellers almost always DO NOT mention Li-batteries VERY SERIOUS property of possible spontaneous ignition (bursting into flames) if cell collapse, short circuit, battery case puncture or even significant over/under charging occurs - a very serious safety issue that really does require knowledgeable understanding by the users of Li-batteries which, unfortunately, is generally not readily understood by many caravanners. Regarding AGM's, yes you can get combustion of oxygen/hydrogen gas evolved if a cell collapses or suffers a short circuit etc, if these batteries are not properly looked after, however in this case it requires a separate source of ignition (usually spark) AND an accumulation of hydrogen in a confined space such that the concentration of evolved hydrogen is both trapped and reaches or exceeds the lower ignition point for hydrogen in air. If using an AGM (or other types of wet-acid batteries) it is a really simple matter to prevent any build-up of hydrogen and oxygen under normal use (for older types of non-valve regulated wet acid types) or even if the above adverse situations occur, by installing a couple of small 12V DC's fans vented to outside from an enclosed battery compartment. The fans can be set to come on when drawing power from or during charging of the AGM's etc., thus totally removing any chance of there being a fire or explosion. Unfortunately, the same extraction process cannot be used to prevent Li-batteries autoignition or combustion possibilities! There are 'always horses for courses' with whichever battery system is adopted BUT benefits and potential hazardous issues for both types of battery systems MUST be rigorously explained by the battery seller AND must also be thoroughly understood by a purchaser before their selection is made! For me for the present, I am sticking with AGM's and putting up with the extra weight disadvantage but enjoying the very significant much lower cost together with what is (IMO) a far safer choice for caravanners. Cheers from Down Under.

[@nothingelsetolose7661]

Yes I second that best explanation and detail to actually build the battery bank thank you

[@jeffma6811]

Hi, I really like your explanation, easy to understand and at an appropriate verbal speed. I will follow you up for the rest video.

[@johnblackwell7717]

Well done, very well explained and presented. Huge help in my research :)

[@freelyroaming]

Thank you John. Good luck in your research.

[@robertnorrell9073]

you got it all figured out, my friend. TY so much !!! :-)

[@muzzgit]

The Bluetooth function is really handy. You can test the system by plugging in 1 appliance at a time and see Exactly how much each one draws. This helps calculate how long you can go between charges. Conversely you could plug in your Absolute Vital appliances and see how long you get. That way when you do not have AC power you know what you can and cannot run.

[@scottmechanical]

🇨🇦 WOW, your teaching abilities are astounding🇨🇦 We subbed because of this! Keep up the great vids.

[@tonymcclendon-hobbytime7727]

well explained, thanks for sharing your knowledge. greatly appreciated.

[@copternutFPV]

So much clear, precise information. Liked and subbed 👍

[@freelyroaming]

Thank you sir!

[@DaveRyan1974]

Awesome Video! I was going to just buy a power station but after watching this I feel confident enough to build my own power station for half the cost and four times the lifespan thank you so much!

[@goneridingparts]

I would love to know how some of these builds compare with a Jackery 500 or something similar. Can someone post some numbers here in the comments.

[@NickkkOnTube]

Greetings from Germany. It is a pleasure to listen to you !

[@justicelee26]

Great content. I really enjoyed the video. I would skip the cell balancer for sure but I think the build is going to be great!

[@hoodiedee4828]

thankyou for explaining about balancing the batteries, it was very clear, now I understand it. thanks again

[@kentkvalnes4621]

Thanks ! The best explanation so far out there. No hype, no tecnical babble or physical therms. It was strait forward and easy explained. Looking forward to the next episodes.

[@ianmburke]

Excellent video man! Very thorough! I just found your channel and subscribed. Great work 👌

[@freelyroaming]

Thanks Ian! Appreciate it.

[@hansjohannsen6722]

Great production, and information. Thanks for sharing

[@deankay4434]

In roughly 2008, GM was introducing the parallel hybrid truck or (PHT / Maybe earlier) but as a contract employee, we had two cross-training week long sessions each year. The engineer was pointing out the entire system but to focus on the battery pack, these where in utilities and extend cab trucks. We did not go into the BMS but pointed out they used a NTC thermistor between every two battery packs. Their charging strategy was 80% of full and 20% of discharge. But also it is common practice to design & spec parts that would last 5,000 hours or = 150,000 miles. Now for AGM. I like the idea but if in a vehicle and discharged two or three times, they are just about done. Now, what kills a normal battery (Lead Acid / AGM) if the battery in located away from extreme quick temperature changes and vibration by placing it under the rear seat, providing a sealed cavity, vented to outside, will last 10-11 years or longer. This story was told to me by many shops and guys I knew for years. From the factory, GM used a dense foam cover that fit the battery. In the stack of returns, half of the GM application came back with the foam blanket on it. In the 80’s, magnetic oil pan heaters for Nebraska winter where sold along with dip-stick heaters or cut a hose or remove a frost plug and put in a heater. The best use of less wattage is an electric blanket for the battery. It kept the battery nice and warm and spun the engine over like a warm summers morning. Just a thought to share. I subscribed and hit the like button. It is worth having someone knowledgeable tell you about the use of Li-ion batteries in vehicles, the channel clearly does it well. Blessings and I will be looking at other videos, as I rebuild my sons steering gear box. ASE Master Tech since 1978 - Retired

[@freelyroaming]

Thanks Dean. Appreciate your very useful insight. Looking forward to more interaction with you in the future.

[@togle184]

Just now finding your channel. I’m elderly and suffer from hearing loss but find the audio on your videos to be excellent. Your pronunciation is way above par. At this point, with only limited exposure to your videos, I find your work significantly better than the usual fair. I like the logic you bring to the table. Thank you from a new fan of your work.

[@freelyroaming]

Thank you for the very nice words. It really helps me to know it's appreciated.

[@mostrogolf22]

Wow, I remember about 2 years ago I saw this video and I was impressed at the time. About two weeks ago I saw another video you made because my interest in solar power grew enough to take me back to this, your video. It it so well made that it is my number one reference of understanding this wonderful concept of renewable energy, THANK YOU. Sending this to my brother to motivate him 😊. Additionally, Im considering making smaller versions of emerging power for my son and daughter. They have now idea of what this 60 y/o man has been through and seen in my long life, and Im greatful for that. Their future may depend immensely on this technology. Once again, thank you, be well and continue to enjoy family and life. 😊 Jerry

[@dalendru]

Great video and explination. Looks like you are somewhere beautiful and warm. Keep up the great work.

[@freelyroaming]

thank you!

[@thesaltlifewithmichealsarc867]

Extremely helpful information and presentation cheers mate👌

[@Blakehx]

That’s a sweet setup, thanks for sharing! I hope to make something similar soon but still need a few essential components (mainly an inverter)!

[@freelyroaming]

Thank you for watching. Good luck with your build.

[@kipdon]

very cool video. Thx! Im still learning about this stuff and you explain very well

[@luckydogfarms]

Subscribed! Always learn more when I watch your videos! Thanks, J

[@freelyroaming]

Thank you!

[@rorymax8233]

Thank you, you have convinced me to build my own 👍

[@collinbarham5985]

You sir are fantastic! This is exactly what I was looking for in my van build!

[@newmiziri]

Hello, Thanks was very clear

[@jimkarban6489]

Excellent audio video quality! Perfect presentation! Now is a good time to learn more about LiFe, THANKS ! ! !

[@freelyroaming]

Thank you!

[@kenk100]

Fantastic video, great information keep up the good work

[@DavidHaney1]

Thanks .. great content, and thanks for the links.

[@unglaubichuberlieber8048]

thanks, very informative, please stay healthy !!!

[@eliasbassil9519]

thanks for the clear and comprehensive tutorial and limiting the hype! it is very refreshing to watch videos that stick to the point. i am considering to follow your setup to make a 36v pack to run a golf cart. could i simply connect 12 individual cells together to achieve this? how would the Ah work? would it be 280x3=840ah total? anything i should do different with the bms?

[@POSMhorsefarmer7]

Thank you.

[@robertfournier947]

Vary clear and a complete description. Good 😊 job.

[@freelyroaming]

Thank you sir

[@davidadams421]

Very good. Really liked the way you explained battery balance and the overall comparison to AGM.

[@freelyroaming]

Thank you David.

[@binder098]

You are an excellent presenter. I am checking out your channel right now!

[@freelyroaming]

Thank you

[@DaveRyan1974]

Yeah This Was So Informative And He Is Well Spoken And Too The Point!

[@freelyroaming]

Thanks Dave!

[@Aryahmmr]

my first time watching one of your videos. Very well explained and super coherent. You've got a new subscriber! Looking forward to your future videos.

[@freelyroaming]

Thank you for support my videos!

[@jayi836]

Great video and job of explaining how things work. Looking forward to my own build

[@freelyroaming]

Thanks Jay. Good luck with your build.

[@jayi836]

@@freelyroaming would love to pay you for consulting and specifying equipment for a 240 volt 3-5kW home UPS , with solar and 20kW generator I will send you an email with my configuration

[@mikes2381]

I remember back in about 2010 ish I was helping out at an EV shop and some cells very similar to these were the traction motor batteries. Off the pallet I had to check their voltage, pair them together, charge them with a pretty normal 12 V charger, then let them rest, check the voltage, discharge them on a big resistor pack that tracked the current and voltage and beeped when finished. Write the basic info on them and recharge them. If they failed I could pair them with others if needed and repeat the cycle. If they failed again, they went onto another pallet. About 1/3 of them failed and 2/3 got to go into the small EVs. Some of them even puffed up during the process.

[@unsilencedman1070]

Hmm, well... you got my sub. Easy to listen to, best how-to for dummies I seen yet.

[@AD6DMDennis]

Thanks for this comprehensive video.

[@freelyroaming]

You are welcome. Thanks for watching.

[@FANGSTALKERNINJAMASTER99]

These are the batteries that I hope to use on my off grid home build. Amazing value.

[@freelyroaming]

Yes indeed. I hope they will prove themselves long term as well. Keep in mind when you buy that some vendors are shipping grade b cells. They will not test at full capacity as mine did. It might be worth paying a bit more to make sure what you buy are grade a cells.

[@SYSirius]

Great explanation!!! Thank you very much!

[@freelyroaming]

You're very welcome! Thank you for watching.

[@williammoore2417]

Wry good information you have done your homework. Thank you

[@dirtberger4533]

Great Thank you!!!

[@antondefense3325]

Great info, I will follow your channel to assist me in building my setup for my off grid travel trailer.

[@alsehl3609]

Great info and good production values.

[@freelyroaming]

Thanks!

[@jj74qformerlyjailbreak3]

Great information mate Love and light

[@freelyroaming]

Thanks buddy

[@franklyons6966]

Thanks Dan very well spoken very well explained I'm a little afraid of building my own because of the fire hazard but I'm sure there are ways to be safe wow what a savings you're the man

[@freelyroaming]

Thanks Frank. It is definitely best to be safe than sorry.

[@nunyabusiness2191]

Lifepo4 are safer with little fire hazard

[@bravo20ghost27]

Great video, thank you. I'm looking forward to your update.

[@freelyroaming]

Thank you very much!

[@bravo20ghost27]

Freely Roaming no worries. I'm currently watching part 1

[@pltspemula]

Teknologi baterai makin maju. Dengan harga yang terjangkau, sekarang kita bisa mendapatkan baterai dengan kinerja yang makin baik. Salam mandiri energi!

[@jesserevilla992]

Just learned about you due to this video and just subscibed after seeing who you are and family.

[@freelyroaming]

Thanks Jesse. We have another channel where we upload more of our travel vlogs if you are interested. kzbin.info

[@richardbird8097]

You are very easy to understand and I appreciate that

[@freelyroaming]

Thank you Richard

[@ryanolander457]

Thank you. I have not been able to comprehend the batteries or the value of them and now I know what to look for. I'm off grid and gas prices here in California are 5.80 a gallon

[@randybarger8649]

Awesome bro cant wait to see build I’ll be a battery builder

[@miaso130]

Very informative video, thanks!

[@freelyroaming]

Thank you!

[@bobham919]

just when i think i know enough i see others saying things that is more complex. i do want to say you give the clef notes that is so so needed. i don't need all the information i just need enough to get her done. thanks so much.

[@freelyroaming]

Thank you Bob.

[@chucksw1]

Hi Dan thanks for all the good info, I like that you take the time to explain all this so well, I plan to make a 12v battery soon!

[@freelyroaming]

You're welcome! Glad it was helpful for you. Good luck with your build.

[@bvic3785]

Very nicely explained thank you Dan

[@freelyroaming]

Thank you

[@jimmycorkhill1390]

My 4 AGM Yuasi Traction Batteries 6V 225AH cost about 155 euros each with free delivery. Just checked and they are still available. Best wishes.

[@jknowledgenet2748]

I think i ordered the same exact batteries recently. The packaging and cells look identical and mine came with the busbars aswell.i don't remember the company I ordered from but I was happy with how they shipped them and how I got them within a week. Now im going your video shows me how to put them together. God bless

[@douglasbernardthoful]

Recently, yesterday I received soonbuy 4s 310 AH, they were garbage. My batteries themselves have no identification on them whatsoever but a generic paper sticker if I can I'll post a picture. There's nothing on them about it manufacturer name model manufacturer date batch number or anything like that so I don't know how they keep track of which batteries go together. One of the cells started leaking or was leaking when they packed it which is actually likely and the leaking is caused it to start the delam and trying to get these people to even acknowledge a message much less give a meaningful response is an impossibility. I followed the link provided to get these batteries although I think I might have deviated and gotten 310 instead of 280 but they're worthless and it takes a long time for them to get here especially when they wait a month to ship.

[@darekcituk491]

you have a gift of explaining stuff to people..really rare nowadays..

[@freelyroaming]

Thanks so much!

[@vinuezaer]

Great, great, great video. Well described and presented.

[@freelyroaming]

Thank you!

[@Browneye57]

Phenomenal.

[@texaslonestarrider]

Thanks!

[@hankmoody5514]

excellent video! You're going to save people a lot of cash money!

[@SuperSushidog]

Great video. Thanks. We are full-time RVers who wanted to replace the 2 FLA golf cart batteries that were located under the steps of our motorhome with the highest capacity LiFePo-4s that would fit in this limited space. We decided to build our own 560ah LiFePo-4 battery bank with a 330amp Heltec BMS (to start the 5,500-watt onboard generator) and a 5a active balancer for under $1,500 including shipping. I paid $1,358 for 8 cells with busbars, FedEXed to my door in about a week. We built our 12v battery out of 8 grade "A" 280ah LiFePo-4 prismatic cells having an 8,000-cycle projected life at 80% DOD or 6,000 cycles at 100% DOD. If we cycled them 100% every single day, 365 days a year, they would last over 16 years! So, they're obviously going to wear out from age before they wear out from cycling as we only use 15-20% of their capacity daily. This gives us enough reserve capacity for several days of bad weather before we have to run our generator for charging. They even saved us 35 lbs compared to our old FLA batteries and have over 5 times the capacity. I top balanced the cells before I assembled the battery, though they were all within a tenth of a volt when I received them. This was probably unnecessary as our 5-amp active balancer would have surely done the job, but spending this much money, we wanted to do the job right. I'm 67 years old and I want these batteries to last longer than me. They were economical too at $2.68/ah. There are cheaper "B" cells available from China that are typically rated at 3,500-4,000 cycles, but we decided to spend a little more to get the higher rated cells shipped from a California warehouse, so if we got a bad one it would be easier and quicker to return and get a replacement. Happily, this wasn't necessary. We insulated the battery compartment, cut a 1" hole in our step risers and installed a tiny computer CPU fan to circulate just enough room temperature air into his compartment keep this space at close to room temperature, so we don't have to worry about the BMS shutting down charging if they get too cold - or their life reduced from getting too hot.

[@trevortrevortsr2]

The problem with charging to just 90% is that most BMS bleed balances only kick in at 3.5 Volts - so its unlikely to balance much if at all - The old rule use to be charge to 3.6v per cell for first 1,2,3 charges then 5th then 10th then ever 50 charges - if you have blue tooth then balance charge when cells are 0.1v out - I have my 20amp bulk charger set to 90% constant voltage then a little 0.6amp charger to do the balance charge - do not use a high amp charger to top balance it will overwhelm the BMS which ballance at as little 15ma per cell - The one you have I think is 60ma - even so its not much - I have a little thermal mat under my RV cell stack that kicks in at 2C - was easy to set up using a little digital temperature circuit with relay and a low watt silicon mat - the whole thing cost less than £10 to build and means I can leave it connected to Solar all year round - Good Luck

[@Outdoorshuntingshooting]

Superb, just started researching lifepo4, some great info. Price is still a pain point, but your self build system helps that somewhat.

[@freelyroaming]

Thank you. Yes I waited for prices to come down to upgrade and ultimately the DIY route made it a no brainer.

[@leewood842]

Wow.. cool video, very informative.....yeah when my lead-acid batts give out I am going to switch.

[@davidelliott5843]

LiFePO4 is much less sensitive to over charging than the more often seen 18650 LiCoAl. LiPo can be taken to full charge (and should be to balance the cells. But it must be done with a BMS that allows the cells to be balanced. Always use a good quality anti seize paste on stainless threads. It stops aluminium corroding and/or stainless galling.

[@Dzikr_Family]

Tengkyu Oom Buat Sharing LifePo4 nya... salam kenal dari Indonesia.. get much info for my DIY Solar System with lifepo4 from your channel . tx very much👍🏻👍🏻

[@wheelhouseadventures8176]

Thanks

[@bencoss7003]

Very instructional video I appreciate it very much

[@freelyroaming]

Thank you Brendon. I appreciate it.

[@mikebissonnette7115]

Thank you so much. I would love to see how these can be used in a off grid home situation with solar charging the batteries. Looking forward to seeing ur other videos

[@freelyroaming]

These are ideally suited for off grid homes. If I was building one for an off grid home I would get 16 cells and build a large 48v system with a large power inverter.

[@randycook4364]

Good information and excellent presentation. Well Done.

[@freelyroaming]

Thank you Randy

[@keithlucas6260]

Those of us who have been flying RC aircraft since forever, and have watched technology transform from nitro power engines to electric motors with Lithium ion and Li-Po batteries. All of that came with a cost of having to upgrade and replace the battery charging stations. I've had my share of inadvertantly charging on the wrong setting and catching them on fire. The chargers and batteries all come with balancing ports and wires for this to make them last longer Our modern controllers have everything to monitor voltages and balances, not to mention our drones hook to laptops or smartphones and do the same via bluetooth or hardwire. There are companies that sell the "server rack" systems that put out 100ah and the server rack that holds six of them. They are pricey at $1,500 each and the rack at $500.....these are direct plug & play into your inverter and hook to laptops as well for monitoring. Price per KwH is from .32/.36 cents. Most heavy duty systems use the 48 volt batteries and inverters and have to be wired directly to an isolated breaker box bus bar with a disconnect in case the power comes back on. Most houses built today need a qualified contractor to evaluate wiring as I've seen some pretty incredible "artistic" work done in them.

[@JEZTABBLE]

thanks for your help i need this set up i have lead acid 320amp on a mppt charge controller and the powers not very good these will be brilliant hopefully my mppt charge controller can charge it. thanks for your help

[@doen.8724]

Got so excited seeing this video, great teacher, great explanation, and presentation. Bu the link to the batteries don't seem to work… Page not found error… Any updates? Suggestions.

[@prepperjonpnw6482]

Aliexpress now charges $520 USD for the batteries he shows in the video thats on March 8 2021. I don’t know why the price jump but it’s still better than $1,000 USD like it was just 2 years ago. Thank you for such a great video. I am now a subscriber and will be going through your backlog of videos making sure to like and comment on each one lol Between you and Will Prowse I’m finally understanding this stuff so thank you for that. Cheers mate

[@MacMcCabe2456]

Do you by chance have a video on building a 36 Volt battery for a Golf Cart ? Great video, well done and easy to understand for someone who's not really good with electronics etc. Thanks !